> In reality I don’t think people’s political opinions change very much and they are just mad that their children individuated.

That seems to be missing the elephant in the room - they sent kids in their most formative intellectual years to immerse themselves in a culture where there is a very high child:adult ratio. Then the kids come back with this wild culture that would make a lot of sense to a bunch of teenagers and young adults. It isn't just that the kids individuating, it is dumping them into one of the most elitist, authoritarian and artificial subcultures society maintains - populated mostly by near-juveniles I repeat - giving them independence to form themselves and discovering that dislocates them from their parents subculture.

It should be obvious that will happen but parents tend to be pretty dumb. No real training course for parenting I suppose.